2023-Sustainable Industrial Processing Summit
SIPS2023 Volume 8. Poeppelmeier Intl. Symp. / Solid State Chemistry
| Editors: | F. Kongoli, M. Delferro, P. S. Halasyamani, M. A. Alario-Franco, F. Marquis, A. Tressaud, H. Kageyama |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2023 |
| Pages: | 144 pages |
| ISBN: | 978-1-989820-86-5 (CD) |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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WHEN FLUORINE MEETS OTHER ELECTRONEGATIVE ELEMENTS : COMPETITIVE BONDS AT THE ORIGIN OF ANIONIC MOBILITY AND ELECTRONIC CONDUCTIVITY FOR ENERGY
Alain Demourgues1;1ICMCB-CNRS-UNIVERSITY OF BORDEAUX, Pessac, France;
Type of Paper: Keynote
Id Paper: 197
Topic: 52
Abstract:
To design materials for energy, electronic and ionic mobility are key features. The chemical bonding involving transition metal or rare-earth ions with more electronegative elements is the common thread. Imagining novel compounds and networks by associating at least two anions with different electronegativity in order to create competitive bonds around metallic ions allow us tuning physical and chemical properties and generating new one’s. It represents also a growing challenge in the field of inorganic synthesis routes, the knowledge of motley structures and finally the transport (electronic+ ionic) properties.
In this journey, we will explore the interest to mix fluorine with less electronegative anions in order to create unusual transport properties 1. Original synthesis routes involving fluorine and at least one additional anion will be presented and discussed with its diversity. Crystal structures will be analyzed and solved considering anionic order and disorder2. Finally the physical and chemical properties will be correlated to the composition and structural features, illustrating the fantastic playground offered by mixing anions in inorganic compounds containing fluorine 1,2.
Keywords:
energy; electronic; ionic mobilityReferences:
[1] J.B. Vaney, B. Vignolle, A. Demourgues, E. Gaudin, E. Durand, C. Labrugère, F. Bernardini, A. Cano and S. Tencé, Topotactic fluorination of intermetallics : a novel route towards quantum materials. Nature Comm, 13, 1462 (2022).[2] J. Gamon, J.B. Bassat, A. Villesuzanne, M. Duttine, M. Batuk, D. Vandemeulebroucke, J. Hadermann, F. Alassani, F. Weill, E. Durand and A. Demourgues. Impact of anionic ordering on the iron site distribution and valence states in oxyfluorideSr2FeO3+xF1-x (x=0.08, 0.2) with a layered perovskite network. Inorg. Chem. 62, 27, 10822-10832, (2023).